After the arrest of Pavel Durov, I wanted to move from Telegram to something end-to-end encrypted. I know Signal is pretty good, but I think it is better to have our messages in my own server.
I have already looked in XMPP, but it required SSL certs and I did not have the mood to configure them.
Do you know any other selfhosted messaging service for a group of 4-5 friends, or an easy way to configure an XMPP server? Or shall I use Signal after all (I don’t really care that much about being selfhosted, I just thought it would be more privacy friendly)?
I know, but for some reason my router does not let me access my domain (with duckdns) when connected to my network. So even if I get certs for the domain, I will not be able to access it. I have set up local DNS entries (with Pi-Hole) to point to my srrver, but I don’t know if it possible to get certs for that, since it is not a real domain.
So long as your certs are for your fully qualified domain there’s no problem. I do this, as do many people — mydoman.com is fully qualified, but on my own network I override the DNS to the local address. Not a problem at all — DNS is tied to the hostname, not the IP.
Can confirm, I do this as well for my local services (especially important for Jellyfin), I just point my local DNS server at my local IP and everything works perfectly.
Why not use a different DDNS service? There are plenty out there. :) I think this may solve your issue. I’ve been using freemyip.com’'s for a while and have had no problem in the past issusing LetsEncrypt SSL’s. At the moment, I’m on Cloudflare tunnels so it’s automatic with them, which I know is a huge trust issue for a lot of people, but I don’t mind it for my stuff. But I do like to have my DDNS as a backup service from time to time.